Wheel for motor-vehicles.



PATENTED MAY 7, 1907.

' W. A.IF. MOCALLUM.

W EEL FOR MOTOR VEHICLES.-

APILIOATION FILED .TAN. 3, 1907.

2 SHEETS-SHBBT 1.

WITNESSES m M 14 arranger.

No. 852,893. "P-AT ENTED MAY 7, 1907.

W, 'A- F. MOGALLUM. WHEEL FOR MOTOR VEHICLES. APPLICATION TILED JAN. 3,1907- I 2 SHEETS-SHEET 2.

fikkazey link WITNESSES W444 44 A Tron/15y.

ii .nLlLJ iVlLLlAlll A. F. MGCALLUM, OF PHILADELPHIA, PENNSYL "'ANIA.

WHEEL FOR WlQTQR VEHlQLES.

No. ceases.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed January 3, 1907. Serial No. 350,562.

To (all whom it may concern.-

Be it known that 1, WILLIAM A. F. MeCAn LUM, a citizen of the United States, residing at Gerrnautown, in the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful improvements in Wheels for Motor-Vehicles, of which the following is a specification.

My invention has relation to wheels for motor vehicles formed of two 'sections arranged concentrically to each other; and in such connection it relates more particularly to resilient means and friction means for the same interposed between the wheel sections and of sectional means for surrounding the tires of the respective wheel sections,

The principal objects of my invention are first, to provide the wheel with springs which when interposed between the contiguous faces of the wheel sections are capable of oilering the same resistance when pressure in the rotation of the wheel is brought to bear alternately from opposite sides on the springs; second, to so connect the springs with each other that the load carried by the wheel is evenly distributed and sustained by all the springs of the Wheel; third, to interpose between the springs and the wheel sections.

yielding rings to prevent the direct engagrnent oi the wheel sections by the springs and oi the rattling between the sections; fourth, to provide the wheel with sectional casings to respectively surround the telly of the inner section of the wheel and to form a support for a solid yielding tire, which owing to the outline in cross section prevents skidding of the wheel on the road; and fifth, to provide the wheel with emergency bolts which in case of breaking of one or more springs permits of locking of the wheel sections to each other.

The nature and scope of my invention will be more fully understood from the following description taken in connection. with the accompanying drawings forming part hereof,

in which Figure 1, is a view, illustrating partly in side elevation and partly in section a wheel, springs pivotaliy connected with each other and having a series oi short leaves disposed on each side of the long leaf thereof int-en osed between the wheel sections, combined wean ing and anti-rattling rings interposed between the springs and the wheel sections, and means for morably connecting the wheelsections with. each other, all embodying main features of my invention. Fig: 2,- is a cross-sectional view of the wheel and illustrating the manner of rigidly connecting the wheel sections by emergency bolts. Fig: 3, is a detail view, enlarged, illustrating perspectively the pivotally connected end portions of two springs. Fig: 4, is a similar view, illustrating the obliquely slotted portion of one of the combined bearing and anti-rattling rings. Fig: 5, is a detail view enlarged, illustrating in side elevationone of the threaded emergency bolts. Fig: 6, isa view illustrating partly in side elevation and partly in section a wheel with modified springs interposed between the sections; and Fig: 7, is a cross-sectional view thereof.

Referring to the drawings 8, represents the inner section and 9, the outer section of the wheel.

10 .is the folly of the inner section preferably made of wood which is surrounded by a metal casing substantially U-shape in crosssection, consisting of sections 11 and 12, which at their abutting portions 13, are re spectively provided with a V-shaped depression and a similarly shaped projection which latter by engaging the depression holds the sections in proper position to each other and prevents displacement thereof at these portions. The sections i1 and 12, of the casing by means of bolts 14, are securely connected with each other and with the telly 10. The outer section 9, of the wheel consists of an annular metal casing which in order to surround the inner wheel sections 10, is likewise made of two sections 15 and 16, held together at their abutting portions 17, by a V-shaped projection. of one section engaging a similarly shaped depression of the other section. Each of the sections 15 and 16, is provided with a projection 18, partially surrounding a solid rubber tire 19, placed between the same, which is connected to the sections and the sections with each other by bolts 20, passing through the projections 18, of the sections 15 and 16, and through the tire 19, thereof. The tire 19, is provided with a flat face 21, which by coming in contact with a roadbed affords owing to its wide surface, the necessary grip on the same to prevent skidding or sidewise movement of the wheel thereon. Between the sections 11 and 12, and 15 and -16, of the casings of the inner and outer sections 8 and 9, are placed springs 22, each consisting of long leaves 23, at both sides of which are placed leaves 24, of gradually decreasing cured to the long leaves 23.

26, for the reception of bolts 27, which in connotion with the eyes 26, pivotally connect the leaves 23 and thus the springs 22, with each other, as shown in Figs: 'l'and 3. Each of thesprings 22, bears with the free ends against the. inner section 8, and at, the outer central curved portion against the outer section 9, thus holding the sections 8 and 9,*in pro er position with respect to each other an at the same time by their resiliency permit of the dispensing with an inflated or air cushioned tire, and permitting of the use of a solid rubber tire 19. Moreover, the springs 22, by being placed loosely between the sections 8 and 9, of the wheel, are permitted to freely expand and contract between the same under the pressure of a load carried by the inner section 8, of thewheel. By the connection of the springs 22, with each other, the

weight of the load is evenly distributed over all the springs 22, in that one or two springs 22, when expanded under the pressure ex- 7 erted thereon by the inner section 8, will by their movement compress the other s rings, whlch by resisting this expansion Wll assist the expanded springs in the carrying of the .load. By the arrangement of shorter spring leaves 24, on the inner side of the long springleaf. 23 the resistance offered by the springs 22, by the compression thereof will be equal to the resistance oiiered by the same by the expansionof the springs, in which instance the shorter leaves 24, on the outer side of the long leaf 23, are ex anded. Thus the springs 22, whether expan ed or contracted will oiler the same amount of resistance and by the even distribution of the load over allthe springs 22, the danger of breaking the same s greatly reduced. If, however, one or more of the springs 22, should break, the sections 8 and 9, of the same, can be readily maintained in their proper position by threaded bolts 30, which bypassing through threaded openings 31 and 32, arranged in the sections 12- and 16, of the casings and by entering a threaded depression 33, in the telly 10, permit of a rigid connection of the wheel sections with each other. As shown in Fig: 2,

, the sections 8 and 9, of thewheel can thus be tary movement of the inner wheel section 8,

to the outer section 9, the section 16, of the.

casing of the outer. wheel section 9, is provided with an opening or cut out portion 34, which is engaged by a projection 35, preferably formed integral with the section 12 of the casing of the inner wheel section 8. As

shown in Figs: 1 and'fi, the opening 34, is-o f seases sufficient width and depth to permit of the free movement of the inner section 8, in the outer section 9, without limiting the same by the projection 35, contacting with the section 16, of the casing of the outer wheel section 9. j, H In order to prevent the wear of the U- shaped casin s surrounding respectivelyv the telly 10, and orming in conjunction with the tire 19, the outer wheel section 9, by the springs 22, between the same and casings, are placed rings 38, preferably formed of steel. These'rings 38, are rendered yielding by being split and by obliquely splitting the ring there will be formed overlapping portions 40,

prevents contacting of the springs 22, with in the split portion 39, of the same, which the wheel section 8 or 9, when the springs to the other the same result may be obtained 4 5 by permitting thesprings to merely, abut against each other, as shown in Fig: 6. To

prevent the creeping of the end portions of the springs 22, upon each other when the same are expanded or contracted under the pressure of a load, the long leaf 23, is provided with extensions 42, curving upward and then laterally to permit the spring leaf 23, to also bear against the outer wheel section 9. An additional spring 42, is thus formed, which securely holds the leaf 23, of the spring 22, with its end portion in engagement with the inner wheel section 8 and moreover, effectually prevents the sliding of the end portions of the springs one upon the other. 5

In instances where the sections 11 and 12, and 15 and 16, of the casings of theouter and inner wheel sections8 and 9, are formed of material oflering great resistance to Wear, the rings 38, forming bearings and anti-rattling means for the springs 22, may be dispensed with, as shown in Fig: 6.

Having thus described the nature and o. b-

jects of my invention, what I claim as new and desire to secure by Letters Patent is ber between the same, a series of springs, each having a long lengths locatedonboth sides of said long lea said series of springs mounted in saidzcham ber inconne'cted with said sections, adapted to respectively expand and contract by pressure exerted thereon;

leaf and leaves of decreasing-' 2. A wheel having outer and inner sections arranged so as to provide an annular chamber between the same, a series of springs, each having along leaf and leaves of decreasing lengths located on both sides thereof, said springs contacting with each other andwith the inner section at their ends, and with the outer section at intermediate portions to maintain said sections in proper position with respect to each other. I

3. A wheel having concentric outer and inner sections arranged so as to form an annular chamber, a series of springs, each having along leaf and leaves of gradually de creasing lengths located on both sides thereof, said springs pivoted to each other at their ends and unconnected with said sections but adapted to maintain said sections in proper position with respect to each other. t

4. A wheel having concentrically arranged outer and inner sections, split rings engaging contiguous portions of said sections, springs interposed between the rings of said sections,

said rings adapted when respectively expanded and contracted by said springs to prevent rattling of the same between said sections.

5. A wheel having concentrically arranged outer and inner sections, split rings engaging contiguous portions of said sections, springs interposed between said rings, said rings adapted to form bearings for said springs and prevent 'direct engagement of the sections with said springs.

6; A wheel having sectional-casings, the outer of which is adapted to loosely engage the inner of said casings so as to be held in position by the same, a tire carried by the outer casing, a. series 'of springs contacting with each other'and the inner casing at their ends and with the outer casing intermediate of the ends to maintain said sections in proper position with respect to each other and a hub section having a tire or felly adapted to be engaged by the inner of said casings.

7. A wheelhaving sectional nested casings, the exterior of said casings forming .an outer wheel section having openings and the inner section projections loosely engaging the openings of the outer section to permit of the transmitting of movement from the inner to the outer casing, a series of springs interposed between said casings'and unconnected therewith, and each having a long leaf and leaves of decreasing lengths on both sides wheel section having openings and the inner section projections loosely engaging the openings of the outer section'to permit of the transmitting of movement from the inner to the outer casing, a series of springs interposed between said casings, each having a long leaf, andleaves of gradually decreasing lengths located on both sides of the long lea 9. A wheel having sectional nested casings, the exterior of said casings forming an outer wheel section having openings and the inner. section projections loosely engaging the openings of the outer section to permit of the transmitting of movement from the inner to the outer casing, a series of leaf springs interposed between said casings and bearing at their ends against each other and said inner casing and at another portion intermediate .of said ends against said outer casing, and theends of each of said springs.

bent so as to form auxiliary springs adapted to prevent displacement of said ends.

10. A wheel having nested casings, the outer and inner of said casings having communicating openings, springs each having a long leaf and leaves of gradually decreasing lengths on both sides thereof mounted between said casings and unconnected therewith, said springs bearing at their ends against each other and oneof said casings and at portions intermediate of said ends against the other of said casings and bolts adapted when one or more of the said springs are rendered inoperative to lock the casings together-by passing into the openings of said casings.

In witness whereof, I have hereunto affixed my si nature, in the presence of'the two subscribing witnesses.

WILLIAM A. F. MCCALLUM. l/Vitnesses:

J. WALTER DOUGLASS, Gno. W. REED. 

